Results 61 to 70 of about 2,492 (169)

Spectrophotometric Studies of Ferric-esculetin Complex

, 1963
Esculatin (6,7-dihydroxycoumarin) hes boon found to form soluble, coloured complexes at different pH with ferric ions. At pH 9.5 end 394m\(\mu\), the complex in 25% methanolic solution obeys Beer's law up to 1.8 p.p.m. of iron (III). Job's method of continued variation and electrophoretio studies have been used to sug­gest a tentative structure.
B. D. Jain, H. B. Singh
openaire   +2 more sources

Kinetic Characterization of the Oxidation of Esculetin by Polyphenol Oxidase and Peroxidase

Bioscience, Biotechnology, and Biochemistry, 2007
Esculetin has been described as an inhibitor of tyrosinase and polyphenol oxidase and, therefore, of melanogenesis. In this work, we demonstrate that esculetin is not an inhibitor but a substrate of mushroom polyphenol oxidase (PPO) and horseradish peroxidase (POD), enzymes which oxidize esculetin, generating its o-quinone.
MUNOZ-MUNOZ, Joseph Louis, GARCIA-MOLINA, Francis, VARON, Raymond, RODRIGUEZ-LOPEZ, Joseph Neptune, GARCIA-CANOVAS, Francis, TUDELA, Joseph   +5 more
openaire   +2 more sources

From Synthesis to Therapeutics: Bioactive‐Coated Zein Nanoparticles in Drug Delivery

Biopolymers, Volume 117, Issue 2, March 2026.
ABSTRACT Polymeric zein nanoparticles (ZNP), derived from corn protein, are biodegradable drug carriers with high stability and low synthesis costs. Their amphiphilic nature allows efficient encapsulation of both hydrophilic and lipophilic drugs, making them promising for drug delivery.
Milena Ferreira de Lima, Andy Joel Taipe Huisa, Azael da Silva Neto, Clarice Beatriz Gonçalves Silva, Iago Dillion Lima Cavalcanti, Karolliny Barbosa de Araújo, Mariane Cajubá de Britto Lira‐Nogueira, Nereide Stela Santos Magalhães, Priscila Gubert   +8 more
wiley   +1 more source

Synthesis of umbelliferone derivatives in Escherichia coli and their biological activities

Journal of Biological Engineering, 2017
Background Umbelliferone, also known as 7-hydroxycoumarin, is a phenolic metabolite found in many familiar plants. Its derivatives have been shown to have various pharmacological and chemo-preventive effects on human health.
Luan Luong Chu, Ramesh Prasad Pandey, Haet Nim Lim, Hye Jin Jung, Nguyen Huy Thuan, Tae-Su Kim, Jae Kyung Sohng   +6 more
doaj   +1 more source

Bioactive Phytochemical Compounds in Medicago sativa L. (Alfalfa): A Systematic Review of Biological Properties and Therapeutic Relevance in Nutraceutical and Functional Food Implications

Food Frontiers, Volume 7, Issue 2, March 2026.
ABSTRACT Medicago sativa L. (alfalfa) harbors a remarkably diverse reservoir of bioactive secondary metabolites. Flavonoids, isoflavones, and triterpenoid saponins dominate its bioactivity landscape, driving potent antioxidant, anti‐inflammatory, antimicrobial, estrogenic, hypolipidemic, and cytotoxic actions through redox modulation, membrane ...
Parham Joolaei Ahranjani, Hamid Rashidi Nodeh, Zahra Esfandiari, Giovanna Ferrentino   +3 more
wiley   +1 more source

Mycochemical Diversity and Therapeutic Potential of Hymenochaetoid Fungi from Central Asia: Regional and Global Perspectives

New Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
Central Asia harbors a rich yet understudied assemblage of wood‐inhabiting Hymenochaetoid fungi. This review delivers the first comprehensive synthesis of 43 poroid species representing 18 genera documented across montane forests, steppes, and xeric habitats.
Yusufjon Gafforov, Milena Rašeta, Sylvie Rapior, Manzura Yarasheva, Oksana Mykchaylova, Rustamjon Allaberdiev, Şule İnci, Dilfuza Berdieva, Arshad Mehmood Abbasi, Shikhnazar Khodjaev, Dian‐Ming Hu, Weijun Yang, Abudujilili Abuduaini, Maria Letizia Taddei, Mengcen Wang, Islomjon Urinboev, Jiajia Chen   +16 more
wiley   +1 more source

Using an Unbiased Coexpression Network to Reveal Cross‐Talking Pathways of Phosphoinositide‐3‐Kinase Regulatory Subunit 1 in Skin Aging and Rejuvenation

The FASEB Journal, Volume 40, Issue 2, 31 January 2026.
Mechanistic pathways of PIK3R1 in skin aging and rejuvenation were analyzed by bioinformatics approach and Gene Expression Omnibus database. Compared with young skin, PIK3R1 was differentially expressed in aged and IPL rejuvenated skin. Coexpression and network analyses revealed that PIK3R1 jointly participated in skin aging and rejuvenation via PI3K ...
Zhike Zhou, Sha Sha, Xiangnan Zhou, Chundi He, Ting Xiao, Yan Wu, Fenqin Chen, Le Qu, Hong‐Duo Chen   +8 more
wiley   +1 more source

Esculetin reduces leukotriene B4 level in plasma of rats with adjuvant-induced arthritis

Rheumatology, 2016
Objectives : Esculetin (6,7-dihydroxycoumarin) is a natural coumarin with anti-oxidant, anti-inflammatory and anti-nociceptive activity. It acts as a potent inhibitor of lipoxygenases (5-LOX and 12-LOX) and decreases the production of matrix ...
Przemysław Rzodkiewicz, Emilia Gąsińska, Michał Gajewski, Magdalena Bujalska-Zadrożny, Dariusz Szukiewicz, Sławomir Maśliński   +5 more
doaj   +1 more source

Dual‐Pathway Defense: Ultramicro‐Pulverised Powder of Polygonum chinense L. and Atractylodes rhizome (PAUP) Rescues Broilers From E. coli‐Triggered Liver Injury Through Modulation of Oxidative Stress and Inflammation

Food Science &Nutrition, Volume 14, Issue 1, January 2026.
Reduced Antibiotic residues and resistance concerns: Offers a potential natural alternative to antibiotics for combating E. coli infections in poultry. Provided safer poultry food products: By enhancing liver function, restoring weight gain, and improving feed efficiency, PAUP supports the production of healthier chickens, ultimately contributing to ...
Jia‐Ci Cai, Yan‐Na Guo, Shao‐Shan Liang, Yan Liu, Fu‐Qiang Huang, Qi‐Peng Lv, Lan‐Yi Zhang, Yi Qin, Xiao‐Jing Chen, Yu‐Xin Liang, Yong‐Ming He, Lu‐Ping Tang   +11 more
wiley   +1 more source

Application of Single-Walled Carbon Nanotubes/Au Nanosol Modified Electrode for the Electrochemical Determination of Esculetin in Cortex Fraxini

International Journal of Electrochemical Science, 2016
A novel simple, sensitive and selective electrochemical sensor was successfully prepared for the determination of esculetin in Cortex Fraxini based on the carboxylic acid-functionalized single-walled carbon nanotubes-Nafion–Au nanosol nanocomposite ...
Yuanyuan Yao, Xiaomei Zhang, Na Li, Xuming Liang, Yangping Wen, Hui Zhang, Yilong Chen, Dajian Yang, Jingkun Xu   +8 more
doaj   +1 more source